曲轴角度4) Crankshaft Dynamics Model 曲轴动力学模型5) mathematics model in frequency domain 频域数学模型 1. Instanced by dead-band PWM, this paper proposes that its explicit modulated wave is attained and its mathematics model in frequency domain is derived by dual Fourier transforms. 文中以...
文档介绍:相对保幅的角度域VSP逆时偏移_英文_DOI:-011-0277-1forAmplitudepreservedVSPreversetimemigrationangle-domainCIGsextraction*111SunWen-Bo,SunZan-Dong,andZhuXing-HuiAbstract:Animprovedmethodofgeneratingangle-mon-imagegathers(ADCIGs)byVSPreversetimemigration(RTM)-paredwiththesurfaceseismicdata,,thedirect...
imagegathers(ADCIGs1byVSPreversetimemigration(RTM)isintroducedinthispaper.TheformulawhichisusedtocomputethereceiverwavefieldforVSPRTMismodifiedbyaddinganamplitudecorrectionterminordertoconvenientlyoutputamplitude—preservedADCIGs.Comparedwiththesurfaceseismicdata,VSPdatacontainsmuchricherwavefields.However,thedirectand...
DOI:10007/§117700114)2771Amplitude preserved VSP reverse time migration forangle-domain CIGs extraction*Sun Wen-BoManuscript received by the Editor January 25,2011; revised manuscript received April 11,201【拿This research is financially supported by National Basic Research Program of China (No. 2011...
局部角度域 1. In the wave equation depth migration of common shot gathers,the windowed Fourier frame expansion of seismic wavefield is used to obtain the receiver and source wavefields in the local angle domain. 在共炮集数据的波动方程深度偏移成像中,利用常规的波场传播算子进行检波点波场和震源波场...
aわれわれが歴史というものを考える場合、個人の歴史的記憶からさらに集団の歴史的記憶、もっといえばある地域、あるいは場所でのある集団や世代が、みをもっていきた歴史的な記憶こそが、時間論の角度からも大変重要になるのではないか。そういう人々の記憶を無視した均質に流れる時間の上に成...
a教育对每个人都很重要,他是提升自我水平的重要方式,很多人都说教育有时候很片面,会使人走进死胡同,从而不能得到全面发展,但我认为,现在的教育不但不会使人见识狭隘,反而会使我们拥有更开阔的视野,站到更高的角度,去涉及更多的领域,从而得到全面的发展 Educates very is all important to each people, he is ...
对VSP逆时偏移中的逆推公式进行了改进,为方便数值计算出相对保幅的角度域共成像点道集(ADCIGs)。此外VSP记录到的波场信息丰富,包括上行波场、下行波场和直达波场等,本文分析了这些波场的响应特征,发现直达波和下行波在角度域共成像点道集(ADCIGs)上都产生了成像噪音,直达波产生的噪音尤为严重。把该方法用于我国...
英语缩写"EA"通常代表"Equal Angle",中文解释为"等角度"。这个缩写在学术科学领域,特别是在建筑学中有着一定的流行度,其拼音为'děng jiǎo dù',拥有140的流行度。"EA"被分类于Academic Science类别,用于表示等视角定理和低副运动可逆性在铰链四杆机构设计中的等价性,以及球面正二十面体投影的...